What are the parameters for sound insulation performance?
Measured in units of decibels (dB) by weighting the amount of noise or the STC (Sound Transmission Class). Chinese standards using Rw, Europe and the United States standard STC, the two parameters of the meaning and value of the equivalent.
What is the weight of the commonly used glass?
Hollow glass argon can be reduced by 1 ~ 2dB.
Product Name Glass Structure Rw (dB)
Monolithic glass 6mm 26
Monolithic glass 10mm 29
Insulating glass 6mm + 9A + 6 mm 33
Insulating glass 6mm + 12A + 6 mm 35
Laminated glass 6mm + 1.14PVB + 6 mm 35
What kind of climate do you work for?
The climate division is mainly representative of the city
Cold area A District Harbin, Qiqihar, Mudanjiang, Manchuria, Jiamusi, Yichun, Karamay, etc.
Yan'an District, Shenyang, Changchun, Fushun, Yanji, pass, Siping, Benxi, Anshan, Dandong, Datong, Hohhot, Zhangjiakou, Urumqi, Turpan, Xining, Yinchuan, Jiuquan,
Cold area Beijing, Tianjin, Shijiazhuang, Dalian, Xi'an, Lanzhou, Taiyuan, Jinan, Qingdao, Zhengzhou, Luoyang, Xuzhou, Kashi and so on;
Hot summer and cold winter Shanghai, Nanjing, Hangzhou, Ningbo, Hefei, Wuhan, Changsha, Nanchang, Guilin, Chongqing, Chengdu, Guiyang, Shaoguan,
Hot summer and warm winter Guangzhou, Shenzhen, Nanning, Fuzhou, Xiamen, Shantou, Liuzhou, Haikou, Wuzhou, etc .;
"Public building energy efficiency design standards" the main indicators
Enclosure structure Climate area U value (W / m2 k) Shading coefficient Sc (southeast / north)
Body shape ≤ 0.3 0.3 <body shape ≤ 0.4
Single toward the outer window
(Including transparent curtain wall) 0.5 <window wall
Area ratio ≤ 0.7 severe cold A area ≤ 1.7 ≤ 1.5 -
Cold B area ≤ 1.8 ≤ 1.6 -
Cold area ≤2.0 ≤ 1.8 0.50 /
Hot summer and cold winter area ≤ 2.5 0.40 / 0.50
Hot summer and warm winter area ≤ 3.0 0.35 / 0.45
Curtain wall glass is now mainly low-E glass (by double silver, single silver Low-E), on the curtain wall glass selection, should consider the following questions:
???? 1, curtain wall and doors and windows glass varieties and processing technology features, including float glass, tempered glass, laminated glass, heat reflective coated glass, Low-E coated glass and other varieties?
???? 2, curtain wall and doors and windows of the energy saving (glass heat transfer coefficient U value, shading coefficient Sc value)?
???? 3, curtain wall and doors and windows of the safety of the glass?
???? 4, curtain wall and doors and windows glass optical properties (color, transmittance, reflectivity)?
5, the typical application of different varieties of glass?
6, building specifications on the requirements of the glass?
